Milwaukee Digital Refractometer MA887


SKU: 4250318920200 Category:


The Milwaukee Digital Refractometer

The Milwaukee Digital Refractometer is a revelation for the modern fishkeeper for testing aquarium salinity/specific gravity and has been met with excellent reviews.

Say goodbye to squinting through an out of focus refractometer whilst awkwardly trying to calibrate it!

milwaukee digital refractometer

Milwaukee Digital Refractometer for Seawater Measurement

The MA887 is an optical instrument. It employs the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water or brackish water. The digital refractometer eliminates the uncertainty associated with mechanical refractometers. It is easily portable for ship, shore or home use.

Milwaukee Digital Refractometer Calibration

The MA887 refractometer is an optical device that is simple and quick to use. Samples are measured after a simple user calibration with distilled or deionized water (RO). All you have to do is put a small sample of RO on testing window and press zero. Dry the are and add your salt water sample then press read. Within seconds, the refractive index and temperature are measured and converted into one of three popular measurement units; Practical Salinity Units (PSU), Salinity in parts per thousand (ppt), or Specific Gravity (S.G. (20/20). All conversion algorithms are based upon respected scientific publications using the physical properties of seawater (not sodium chloride). The temperature (in °C or °F) is also displayed on the large dual level display along with helpful message codes.
Key features include:
  • Automatic Temperature Compensation (ATC)
  • Battery operation with Low Power indicator
  • Automatically turns off after 3 minutes of non-use.
Stainless Steel Sample Well and Prism
  • Place a few drops of the sample in the well and press the READ key.
Liquid Cristal Display (LCD)
  • Dual Level LCD with Primary and Secondary Display
0 to 50 PSU
0 to 150 ppt
1.000 to 1.114 S.G. (20/20)
0 to 80°C / 32 to 175°F 
1 ppt
0.001 S.G. (20/20)
0.1°C / 0.1°F
±2 PSU
±2 ppt
±0.002 S.G. (20/20)
±0.3°C / ±0.5°F
  • Light Source: Yellow LED
  • Measurements Time: Approximately 1.5 seconds
  • Minimum Sample Volume: 100 µL (cover prism totally)
  • Sample Cell: SS ring and flint glass prism
  • Temperature Compensation: Automatic between 10 and 40°C / 50 to 104°F
  • Case Material: ABS
  • Battery Type: 1 x 9V AA (included for free)
  • Battery Life: 5000 readings
  • Auto-shut off: after 3 minutes of non-use
  • Dimensions: 192 x 102 x 67 mm
  • Weight: 420 g
MA887 instrument is supplied with:
Milwaukee Digital Refractometer MA887 WARRANTY: This instrument is warranted from all defects in materials and manufacturing for a period of two years from the date of purchase. If during this period, the repair or replacement of parts is required, where the damage is not due to negligence or erroneous operation by the user, please return the parts to the manufacturer and the repair will be affected free of charge. Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered.

Take a look at the video below from Dans Reef to see the Milwaukee Digital Refractometer is action.

For more high quality test kits click here

Milwaukee Digital Refractometer MA887

digital refractometer

Delivery Information

All in stock orders placed before 12pm will be shipped the same day unless otherwise stated. Your order will be shipped via the delivery method selected at checkout.

All deliveries (excluding pallets and livestock deliveries) over £50.00 will be sent via 1-2 day courier free of charge. Orders under £50.00 will have both a 2-3 day service available at £3.95 and a 1-2 day service at £5.95 offered.

Please note that all services rely on third-party couriers to deliver on time and in good order. We will alway enever to use the best service available. At the moment this is Royal Mail, UPS and DSL. We will of course do our best to ensure that your delivery arrives when stated at the time of purchase, however, we can not be held liable for delays caused by the delivery company.

Aquarium & Pond Services